ThinkPad X140e - Page 101

Table5.Securitymenuitems(continued)
Menuitem
SubmenuitemSelectionComments
authenticationonthe
operatingsystem.
SetMinimumLength
•Disabled
•Passwordlengthoptions
Specifyaminimumlength
forthepower-onpassword
andharddiskpassword.
Bydefault,thisissetto
Disabled.Ifyousetthe
supervisorpasswordand
specifyaminimumlength
forpasswords,noonebut
youcanchangethelength.
Power-OnPassword
•Enter
Referto“Power-on
password”onpage42.
HardDisk1Password•Enter
Referto“Harddisk
passwords”onpage
42
.
FlashBIOSUpdatingby
End-Users
•Disabled
•Enabled
IfyouselectEnabled,
alluserscanupdatethe
UEFIBIOS.Ifyouselect
Disabled,onlytheperson
whoknowsthesupervisor
passwordcanupdatethe
UEFIBIOS.
UEFIBIOSUpdateOption
SecureRollBackPrevention
•Disabled
•Enabled
Selectwhetheryouwant
toashtoolderversionof
UEFIBIOS.
MemoryProtectionExecutionPrevention•Disabled
•Enabled
Somecomputerviruses
andwormscausememory
bufferstooverowby
runningcodewhereonly
dataisallowed.Ifthe
DataExecutionPrevention
featurecanbeusedwith
youroperatingsystem,then
byselectingEnabledyou
canprotectyourcomputer
againstattacksbysuch
virusesandworms.Ifafter
choosingEnabledyound
thataprogramdoesnotrun
correctly,selectDisabled
andresetthesetting.
Virtualization
AMD(TM)Virtualization
Technology
•Disabled
•Enabled
IfyouselectEnabled,a
VirtualMachineMonitor
(VMM)canutilizethe
additionalhardware
capabilitiesprovidedby
AMD(TM)Virtualization
Technology.
Chapter7.Advancedconguration85